Material Types

The following is a reference guide of our most commons materials and their special characteristicss for hardness, corrosion resistance, magnetic strenght and various applications.
For critical applications, please contact your local representative.

METALS MATERIAL

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

MAGNETIC

SPECIAL COMMENTS

52100

Bearings

Grinding Media

Switches

60-67 HRc
Thru-Hardened

None

High

High load

Excellent surface duality

440CSS

Bearings

Grinding Media

Valves / Pumps

Watering Devices

Ball Transfer

58-65 HRc
Thru-Hardened

Good

High

420SS

Bearings

Grinding Media

Valves / Pumps

Watering Devices

Ball Transfer

52 Min. HRc
Thru-Hardened

Good

High

Less expensive than 440C

302SS/304SS

Grinding Media

Finger Pumps

Valves / Pumps

Watering Devices

Food Processing

Medical Applications

25-39 HRc
Soft Work-Hardened

Better

Slightly

Corrosion resistance increased by annealing

316SS

Valves & Pumps

25-39 HRc
Soft Work-Hardened

Best

Slightly

2017 Aluminum

54-72 HRc

BG42

60-65 HRc

S-2 TOOL STEEL

Oil Field Equipment

Off-Shore Drilling

50 Min. HRc
Thru-Hardened

None

Slightly

Severe shock load

REXALLOY STELLITE

Down-Hole Pumps

"Balls and Seats"

Nuclear Bearings

Check Valves

Supplied Material

Best

Slightly

Supplied material

Corrosion resistant in heavy water

CARBON 1013-1018

Casters

Drawer Slides

Media

Bearings

Door Locks

Conveyors

Bicycles

Roller Skates

60 Min. HRc
Case-Hardened

None

Highest

Inexpensive anti-friction bearings

CARBON 1065

Same as 1013-1018

60 Min. HRc
Thru-Hardened

None

Highest

Same as 1013-1018

BRASS

Valves

75-87 HRc
Soft
Work-Hardened

Good

None

Lower cost for corrosion resistance

Excellent corrosion to H20.fuel, oil, gas, butane.etc

430SS

Auto-Fuel valves

Finger Pumps

20 Max HRc
Soft
Work-Hardened

Best

High

T-15 (Rod/Powder)

65-68 HRc

TIC COATED (440CVM)

Ultra High Precision Brgs

Aerospace Applications

58 Min. HRc

High

Usually 440SS core ball

TUNGSTON
CARBIDE

Paint Sprayers

Some Bearings

Gas Lift Valves

Better

Hight

Very Hard Material

HASTELLOY

Check Valves

Better

Chosen for corrosion resistance

Super tough

Soft Material

TITANIUM

Check Valves

Good

Med. Hard Material

CERAMICS

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

Density

SPECIAL COMMENTS

ALUMINA OXIDE - 99.5% Pure

Check Valves

Chemical Pumps

Hard (1700Hv)

Best

3.87

ZIRCONIA OXIDE

Check Valves

Hard

Best

SILICON NITRIDE

High Precision Bearings

Some Check Valves

High Speed or High Load

Automotive Injectors

1300 Min. Hv

Best

None

Good at high temps. (2550 F)

No lubrication needed

PLASTICS INJECTION MOLDED

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

Density

SPECIAL COMMENTS

ACETAL

Drawer Slides

Check Balls

Sailboat Blocks

Light Duty Bearings in Corrosion

M94
R120

1.42

ACRYLIC

Bearings

M96

Clear Balls

NYLON

Check Valves

Finger Pumps

R121
R108

1.14

1.2% - High Absorption

POLYAMIDE-IMIDE aka TORLON

Bearings

Sailboat Blocks

E86

1.38

POLYCARBONATE aka LEXAN

Bearings

M70
R118

1.2

POLYETHYLENE High Density

Plugs

Level Indicators

.96

0.96 - Floats

900% - Elongated

POLYETHYLENE Low Density

Plug Balls

.91

0.91 - Floats

590% - Elongated

POLYPROPYLENE

Check Balls

Plug Balls

Level Indicators

99

.902

0.902 - Floats

POLYSTYRENE

Medical Diagnostic Kits

M75

1.05

Clear balls

VOID FREE FROM EXTRUDED ROD

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

DENSITY

SPECIAL COMMENTS

PTFE aka TEFLON

Check Valves

Piviot Ball

D50
D65

2.14 - 2.24

0.01 - Low Absorption

2.14 - 2.24 - High Gravity

GLASS

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

MAGNETIC

SPECIAL COMMENTS

SODA-LIME

Aerosol Agitator

Very Hard

Inert

N/A

Inert to corrosion

Please note that the material information provided on our website is for informational purposes only. The properties listed per product type are typical and can vary based on suppliers of raw materials and customer specific needs. Please contact customer service for verification prior to ordering. Price and delivery may be subject to change based on specific requirements.